Uploading an image in the Forum?

I hope this isn't a silly question - I'm not the most technically-friendly - how do you put a picture in a forum post? I'd love to ask for feedback on specific pictures and take part in the 'Favourite photo' game but don't know how to enter a picture in a post. Your help would be greatly appreciated, thank you!

Moderator input
Ensure you have the Forum Post Editor set to Rich Text Editorin your Forum PreferencesThen click on the [Image] icon in the menu bar when making a forum post.
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